If a hacker can find a way to infect a point where the data being sent to your computer has to pass through, then they can infect your computer with massively powerful viruses.

A large amount of software downloads an "install" file that actually downloads the rest of an open source program to your PC. German cybersecurity researchers discovered that if a hacker can infect one of the servers that sends you these downloads, then your computer is open season.

Because these programs tend to have larger file sizes, hackers can develop malware that takes up more space on your PC. This means that they can give it more complex instructions - most likely adding your PC to a botnet - without you noticing.

The worst part is that these open source programs are all downloaded from sources we trust. Hackers can already hit through YouTube, but this is something entirely more dangerous. By infecting the points between downloading and installing a program, hackers can use that trust against us.